s390/oprofile: move hwsampler interfaces to cpu_mf.h
Extract and move the oprofile hwsampler data structures and interfaces to the cpu_mf.h header file which contains common interface definitions for the various CPU-measurement facilities. This change is necessary for a new perf PMU. Few interface names have been revised to fit to the latest CPU-measurement facilities documentation. Also declare the data structures as __packed and correct checkpatch findings. Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Hendrik Brueckner
Martin Schwidefsky
parent
52733e0152
commit
cf48ad8327
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@ -56,6 +56,78 @@ struct cpumf_ctr_info {
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u32 reserved2[12];
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} __packed;
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/* QUERY SAMPLING INFORMATION block */
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struct hws_qsi_info_block { /* Bit(s) */
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unsigned int b0_13:14; /* 0-13: zeros */
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unsigned int as:1; /* 14: sampling authorisation control*/
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unsigned int b15_21:7; /* 15-21: zeros */
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unsigned int es:1; /* 22: sampling enable control */
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unsigned int b23_29:7; /* 23-29: zeros */
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unsigned int cs:1; /* 30: sampling activation control */
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unsigned int:1; /* 31: reserved */
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unsigned int bsdes:16; /* 4-5: size of basic sampling entry */
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unsigned int dsdes:16; /* 6-7: size of diagnostic sampling entry */
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unsigned long min_sampl_rate; /* 8-15: minimum sampling interval */
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unsigned long max_sampl_rate; /* 16-23: maximum sampling interval*/
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unsigned long tear; /* 24-31: TEAR contents */
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unsigned long dear; /* 32-39: DEAR contents */
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unsigned int rsvrd0; /* 40-43: reserved */
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unsigned int cpu_speed; /* 44-47: CPU speed */
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unsigned long long rsvrd1; /* 48-55: reserved */
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unsigned long long rsvrd2; /* 56-63: reserved */
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} __packed;
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/* SET SAMPLING CONTROLS request block */
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struct hws_lsctl_request_block {
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unsigned int s:1; /* 0: maximum buffer indicator */
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unsigned int h:1; /* 1: part. level reserved for VM use*/
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unsigned long long b2_53:52;/* 2-53: zeros */
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unsigned int es:1; /* 54: sampling enable control */
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unsigned int b55_61:7; /* 55-61: - zeros */
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unsigned int cs:1; /* 62: sampling activation control */
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unsigned int b63:1; /* 63: zero */
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unsigned long interval; /* 8-15: sampling interval */
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unsigned long tear; /* 16-23: TEAR contents */
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unsigned long dear; /* 24-31: DEAR contents */
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/* 32-63: */
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unsigned long rsvrd1; /* reserved */
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unsigned long rsvrd2; /* reserved */
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unsigned long rsvrd3; /* reserved */
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unsigned long rsvrd4; /* reserved */
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} __packed;
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struct hws_data_entry {
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unsigned int def:16; /* 0-15 Data Entry Format */
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unsigned int R:4; /* 16-19 reserved */
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unsigned int U:4; /* 20-23 Number of unique instruct. */
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unsigned int z:2; /* zeros */
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unsigned int T:1; /* 26 PSW DAT mode */
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unsigned int W:1; /* 27 PSW wait state */
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unsigned int P:1; /* 28 PSW Problem state */
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unsigned int AS:2; /* 29-30 PSW address-space control */
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unsigned int I:1; /* 31 entry valid or invalid */
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unsigned int:16;
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unsigned int prim_asn:16; /* primary ASN */
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unsigned long long ia; /* Instruction Address */
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unsigned long long gpp; /* Guest Program Parameter */
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unsigned long long hpp; /* Host Program Parameter */
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} __packed;
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struct hws_trailer_entry {
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unsigned int f:1; /* 0 - Block Full Indicator */
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unsigned int a:1; /* 1 - Alert request control */
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unsigned int t:1; /* 2 - Timestamp format */
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unsigned long long:61; /* 3 - 63: Reserved */
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unsigned long long overflow; /* 64 - sample Overflow count */
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unsigned long long timestamp; /* 16 - time-stamp */
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unsigned long long timestamp1; /* */
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unsigned long long reserved1; /* 32 -Reserved */
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unsigned long long reserved2; /* */
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unsigned long long progusage1; /* 48 - reserved for programming use */
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unsigned long long progusage2; /* */
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} __packed;
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/* Query counter information */
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static inline int qctri(struct cpumf_ctr_info *info)
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{
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@ -99,4 +171,70 @@ static inline int ecctr(u64 ctr, u64 *val)
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return cc;
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}
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/* Query sampling information */
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static inline int qsi(struct hws_qsi_info_block *info)
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{
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int cc;
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cc = 1;
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asm volatile(
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"0: .insn s,0xb2860000,0(%1)\n"
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"1: lhi %0,0\n"
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"2:\n"
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EX_TABLE(0b, 2b) EX_TABLE(1b, 2b)
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: "=d" (cc), "+a" (info)
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: "m" (*info)
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: "cc", "memory");
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return cc ? -EINVAL : 0;
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}
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/* Load sampling controls */
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static inline int lsctl(struct hws_lsctl_request_block *req)
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{
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int cc;
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cc = 1;
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asm volatile(
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"0: .insn s,0xb2870000,0(%1)\n"
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"1: ipm %0\n"
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" srl %0,28\n"
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"2:\n"
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EX_TABLE(0b, 2b) EX_TABLE(1b, 2b)
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: "+d" (cc), "+a" (req)
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: "m" (*req)
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: "cc", "memory");
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return cc ? -EINVAL : 0;
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}
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/* Sampling control helper functions */
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#define SDB_TE_ALERT_REQ_MASK 0x4000000000000000UL
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#define SDB_TE_BUFFER_FULL_MASK 0x8000000000000000UL
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/* Return pointer to trailer entry of an sample data block */
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static inline unsigned long *trailer_entry_ptr(unsigned long v)
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{
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void *ret;
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ret = (void *) v;
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ret += PAGE_SIZE;
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ret -= sizeof(struct hws_trailer_entry);
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return (unsigned long *) ret;
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}
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/* Return if the entry in the sample data block table (sdbt)
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* is a link to the next sdbt */
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static inline int is_link_entry(unsigned long *s)
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{
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return *s & 0x1ul ? 1 : 0;
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}
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/* Return pointer to the linked sdbt */
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static inline unsigned long *get_next_sdbt(unsigned long *s)
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{
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return (unsigned long *) (*s & ~0x1ul);
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}
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#endif /* _ASM_S390_CPU_MF_H */
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@ -26,9 +26,6 @@
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#define MAX_NUM_SDB 511
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#define MIN_NUM_SDB 1
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#define ALERT_REQ_MASK 0x4000000000000000ul
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#define BUFFER_FULL_MASK 0x8000000000000000ul
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DECLARE_PER_CPU(struct hws_cpu_buffer, sampler_cpu_buffer);
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struct hws_execute_parms {
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@ -65,43 +62,6 @@ static unsigned long interval;
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static unsigned long min_sampler_rate;
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static unsigned long max_sampler_rate;
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static int ssctl(void *buffer)
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{
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int cc;
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/* set in order to detect a program check */
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cc = 1;
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asm volatile(
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"0: .insn s,0xB2870000,0(%1)\n"
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"1: ipm %0\n"
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" srl %0,28\n"
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"2:\n"
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EX_TABLE(0b, 2b) EX_TABLE(1b, 2b)
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: "+d" (cc), "+a" (buffer)
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: "m" (*((struct hws_ssctl_request_block *)buffer))
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: "cc", "memory");
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return cc ? -EINVAL : 0 ;
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}
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static int qsi(void *buffer)
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{
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int cc;
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cc = 1;
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asm volatile(
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"0: .insn s,0xB2860000,0(%1)\n"
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"1: lhi %0,0\n"
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"2:\n"
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EX_TABLE(0b, 2b) EX_TABLE(1b, 2b)
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: "=d" (cc), "+a" (buffer)
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: "m" (*((struct hws_qsi_info_block *)buffer))
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: "cc", "memory");
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return cc ? -EINVAL : 0;
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}
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static void execute_qsi(void *parms)
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{
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struct hws_execute_parms *ep = parms;
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@ -113,7 +73,7 @@ static void execute_ssctl(void *parms)
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{
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struct hws_execute_parms *ep = parms;
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ep->rc = ssctl(ep->buffer);
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ep->rc = lsctl(ep->buffer);
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}
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static int smp_ctl_ssctl_stop(int cpu)
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@ -214,17 +174,6 @@ static int smp_ctl_qsi(int cpu)
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return ep.rc;
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}
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static inline unsigned long *trailer_entry_ptr(unsigned long v)
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{
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void *ret;
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ret = (void *)v;
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ret += PAGE_SIZE;
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ret -= sizeof(struct hws_trailer_entry);
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return (unsigned long *) ret;
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}
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static void hws_ext_handler(struct ext_code ext_code,
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unsigned int param32, unsigned long param64)
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{
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@ -256,16 +205,6 @@ static void init_all_cpu_buffers(void)
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}
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}
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static int is_link_entry(unsigned long *s)
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{
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return *s & 0x1ul ? 1 : 0;
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}
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static unsigned long *get_next_sdbt(unsigned long *s)
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{
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return (unsigned long *) (*s & ~0x1ul);
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}
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static int prepare_cpu_buffers(void)
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{
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int cpu;
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@ -353,7 +292,7 @@ static int allocate_sdbt(int cpu)
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}
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*sdbt = sdb;
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trailer = trailer_entry_ptr(*sdbt);
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*trailer = ALERT_REQ_MASK;
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*trailer = SDB_TE_ALERT_REQ_MASK;
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sdbt++;
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mutex_unlock(&hws_sem_oom);
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}
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@ -829,7 +768,7 @@ static void worker_on_interrupt(unsigned int cpu)
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trailer = trailer_entry_ptr(*sdbt);
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/* leave loop if no more work to do */
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if (!(*trailer & BUFFER_FULL_MASK)) {
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if (!(*trailer & SDB_TE_BUFFER_FULL_MASK)) {
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done = 1;
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if (!hws_flush_all)
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continue;
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@ -9,27 +9,7 @@
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#define HWSAMPLER_H_
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#include <linux/workqueue.h>
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struct hws_qsi_info_block /* QUERY SAMPLING information block */
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{ /* Bit(s) */
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unsigned int b0_13:14; /* 0-13: zeros */
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unsigned int as:1; /* 14: sampling authorisation control*/
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unsigned int b15_21:7; /* 15-21: zeros */
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unsigned int es:1; /* 22: sampling enable control */
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unsigned int b23_29:7; /* 23-29: zeros */
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unsigned int cs:1; /* 30: sampling activation control */
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unsigned int:1; /* 31: reserved */
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unsigned int bsdes:16; /* 4-5: size of sampling entry */
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unsigned int:16; /* 6-7: reserved */
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unsigned long min_sampl_rate; /* 8-15: minimum sampling interval */
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unsigned long max_sampl_rate; /* 16-23: maximum sampling interval*/
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unsigned long tear; /* 24-31: TEAR contents */
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unsigned long dear; /* 32-39: DEAR contents */
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unsigned int rsvrd0; /* 40-43: reserved */
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unsigned int cpu_speed; /* 44-47: CPU speed */
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unsigned long long rsvrd1; /* 48-55: reserved */
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unsigned long long rsvrd2; /* 56-63: reserved */
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};
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#include <asm/cpu_mf.h>
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struct hws_ssctl_request_block /* SET SAMPLING CONTROLS req block */
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{ /* bytes 0 - 7 Bit(s) */
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@ -68,36 +48,6 @@ struct hws_cpu_buffer {
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unsigned int stop_mode:1;
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};
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struct hws_data_entry {
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unsigned int def:16; /* 0-15 Data Entry Format */
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unsigned int R:4; /* 16-19 reserved */
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unsigned int U:4; /* 20-23 Number of unique instruct. */
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unsigned int z:2; /* zeros */
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unsigned int T:1; /* 26 PSW DAT mode */
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unsigned int W:1; /* 27 PSW wait state */
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unsigned int P:1; /* 28 PSW Problem state */
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unsigned int AS:2; /* 29-30 PSW address-space control */
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unsigned int I:1; /* 31 entry valid or invalid */
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unsigned int:16;
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unsigned int prim_asn:16; /* primary ASN */
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unsigned long long ia; /* Instruction Address */
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unsigned long long gpp; /* Guest Program Parameter */
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unsigned long long hpp; /* Host Program Parameter */
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};
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struct hws_trailer_entry {
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unsigned int f:1; /* 0 - Block Full Indicator */
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unsigned int a:1; /* 1 - Alert request control */
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unsigned long:62; /* 2 - 63: Reserved */
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unsigned long overflow; /* 64 - sample Overflow count */
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unsigned long timestamp; /* 16 - time-stamp */
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unsigned long timestamp1; /* */
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unsigned long reserved1; /* 32 -Reserved */
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unsigned long reserved2; /* */
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unsigned long progusage1; /* 48 - reserved for programming use */
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unsigned long progusage2; /* */
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};
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int hwsampler_setup(void);
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int hwsampler_shutdown(void);
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int hwsampler_allocate(unsigned long sdbt, unsigned long sdb);
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